Add range of pointer integer types

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2333 42af7a65-404d-4744-a932-0658087f49c3

15 files changed, 412 insertions, 154 deletions

diff --git a/nuttx/arch/arm/include/limits.h b/nuttx/arch/arm/include/limits.h
index b18facb86..fc122a3ac 100644
--- a/nuttx/arch/arm/include/limits.h
+++ b/nuttx/arch/arm/include/limits.h
@@ -1,7 +1,7 @@
 /****************************************************************************
  * arch/arm/include/limits.h
  *
- *   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -44,32 +44,37 @@
  * Definitions
  ****************************************************************************/
 
-#define CHAR_BIT        8
-#define SCHAR_MIN	0x80
-#define SCHAR_MAX	0x7f
-#define UCHAR_MAX	0xff
+#define CHAR_BIT    8
+#define SCHAR_MIN   0x80
+#define SCHAR_MAX   0x7f
+#define UCHAR_MAX   0xff
 
 /* These could be different on machines where char is unsigned */
 
-#define CHAR_MIN	SCHAR_MIN
-#define CHAR_MAX	SCHAR_MAX
+#define CHAR_MIN    SCHAR_MIN
+#define CHAR_MAX    SCHAR_MAX
 
-#define SHRT_MIN	0x8000
-#define SHRT_MAX	0x7fff
-#define USHRT_MAX	0xffff
+#define SHRT_MIN    0x8000
+#define SHRT_MAX    0x7fff
+#define USHRT_MAX   0xffff
 
-#define INT_MIN         0x80000000
-#define INT_MAX         0x7fffffff
-#define UINT_MAX	0xffffffff
+#define INT_MIN     0x80000000
+#define INT_MAX     0x7fffffff
+#define UINT_MAX    0xffffffff
 
 /* These change on 32-bit and 64-bit platforms */
 
-#define LONG_MAX	0x80000000
-#define LONG_MIN	0x7fffffff
-#define ULONG_MAX	0xffffffff
+#define LONG_MAX    0x80000000
+#define LONG_MIN    0x7fffffff
+#define ULONG_MAX   0xffffffff
 
-#define LLONG_MAX	0x8000000000000000
-#define LLONG_MIN	0x7fffffffffffffff
-#define ULLONG_MAX	0xffffffffffffffff
+#define LLONG_MAX   0x8000000000000000
+#define LLONG_MIN   0x7fffffffffffffff
+#define ULLONG_MAX  0xffffffffffffffff
+
+/* A pointer is 4 bytes */
+
+#define PTR_MIN     0x00000000
+#define PTR_MAX     0xffffffff
 
 #endif /* __ARCH_ARM_INCLUDE_LIMITS_H */
diff --git a/nuttx/arch/hc/include/hc12/limits.h b/nuttx/arch/hc/include/hc12/limits.h
index 8d4d5f843..919ef1b28 100755
--- a/nuttx/arch/hc/include/hc12/limits.h
+++ b/nuttx/arch/hc/include/hc12/limits.h
@@ -83,4 +83,9 @@
 #define LLONG_MIN   0x7fffffffffffffff
 #define ULLONG_MAX  0xffffffffffffffff
 
+/* A pointer is 2 bytes */
+
+#define PTR_MIN     0x0000
+#define PTR_MAX     0xffff
+
 #endif /* __ARCH_HC_INCLUDE_HC12_LIMITS_H */
diff --git a/nuttx/arch/hc/include/hcs12/limits.h b/nuttx/arch/hc/include/hcs12/limits.h
index d9ebaa94a..6fa85c4b4 100755
--- a/nuttx/arch/hc/include/hcs12/limits.h
+++ b/nuttx/arch/hc/include/hcs12/limits.h
@@ -83,4 +83,9 @@
 #define LLONG_MIN   0x7fffffffffffffff
 #define ULLONG_MAX  0xffffffffffffffff
 
+/* A pointer is 2 bytes */
+
+#define PTR_MIN     0x0000
+#define PTR_MAX     0xffff
+
 #endif /* __ARCH_HC_INCLUDE_HCS12_LIMITS_H */
diff --git a/nuttx/arch/pjrc-8051/include/limits.h b/nuttx/arch/pjrc-8051/include/limits.h
index a6bffc0ed..c6fa9af8a 100644
--- a/nuttx/arch/pjrc-8051/include/limits.h
+++ b/nuttx/arch/pjrc-8051/include/limits.h
@@ -1,7 +1,7 @@
 /************************************************************
- * limits.h
+ * arch/pjrc-8051/include/limits.h
  *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -33,8 +33,8 @@
  *
  ************************************************************/
 
-#ifndef __ARCH_LIMITS_H
-#define __ARCH_LIMITS_H
+#ifndef __ARCH_PJRC8051_INCLUDE_LIMITS_H 
+#define __ARCH_PJRC8051_INCLUDE_LIMITS_H 
 
 /************************************************************
  * Included Files
@@ -44,28 +44,35 @@
  * Definitions
  ************************************************************/
 
-#define CHAR_BIT        8
-#define SCHAR_MIN	0x80
-#define SCHAR_MAX	0x7f
-#define UCHAR_MAX	0xff
+#define CHAR_BIT    8
+#define SCHAR_MIN   0x80
+#define SCHAR_MAX   0x7f
+#define UCHAR_MAX   0xff
 
 /* These could be different on machines where char is unsigned */
 
-#define CHAR_MIN	SCHAR_MIN
-#define CHAR_MAX	SCHAR_MAX
+#define CHAR_MIN    SCHAR_MIN
+#define CHAR_MAX    SCHAR_MAX
 
-#define SHRT_MIN	0x8000
-#define SHRT_MAX	0x7fff
-#define USHRT_MAX	0xffff
+#define SHRT_MIN    0x8000
+#define SHRT_MAX    0x7fff
+#define USHRT_MAX   0xffff
 
-#define INT_MIN         0x8000
-#define INT_MAX         0x7fff
-#define UINT_MAX	0xffff
+#define INT_MIN     0x8000
+#define INT_MAX     0x7fff
+#define UINT_MAX    0xffff
 
 /* These change on 32-bit and 64-bit platforms */
 
-#define LONG_MAX	0x80000000
-#define LONG_MIN	0x7fffffff
-#define ULONG_MAX	0xffffffff
+#define LONG_MAX    0x80000000
+#define LONG_MIN    0x7fffffff
+#define ULONG_MAX   0xffffffff
 
-#endif /* __ARCH_LIMITS_H */
+/* For SDCC, a Generic pointer is 3 bytes in length with the
+ * first byte holding data space information.
+ */
+
+#define PTR_MIN     0x000000
+#define PTR_MAX     0xffffff
+
+#endif /* __ARCH_PJRC8051_INCLUDE_LIMITS_H  */
diff --git a/nuttx/arch/pjrc-8051/include/types.h b/nuttx/arch/pjrc-8051/include/types.h
index f334b176f..e8fa77a39 100644
--- a/nuttx/arch/pjrc-8051/include/types.h
+++ b/nuttx/arch/pjrc-8051/include/types.h
@@ -1,5 +1,5 @@
 /************************************************************
- * arch/types.h
+ * arch/pjrc-8051/include/types.h
  *
  *   Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
@@ -37,8 +37,8 @@
  * only indirectly through sys/types.h
  */
 
-#ifndef __ARCH_TYPES_H
-#define __ARCH_TYPES_H
+#ifndef __ARCH_PJRC8051_INCLUDE_TYPES_H 
+#define __ARCH_PJRC8051_INCLUDE_TYPES_H 
 
 /************************************************************
  * Included Files
@@ -87,4 +87,4 @@ typedef unsigned char irqstate_t;
  * Global Function Prototypes
  ************************************************************/
 
-#endif /* __ARCH_TYPES_H */
+#endif /* __ARCH_PJRC8051_INCLUDE_TYPES_H  */
diff --git a/nuttx/arch/sh/include/m16c/limits.h b/nuttx/arch/sh/include/m16c/limits.h
index c97644572..61fca2882 100644
--- a/nuttx/arch/sh/include/m16c/limits.h
+++ b/nuttx/arch/sh/include/m16c/limits.h
@@ -44,34 +44,39 @@
  * Definitions
  ****************************************************************************/
 
-#define CHAR_BIT        8
-#define SCHAR_MIN	0x80
-#define SCHAR_MAX	0x7f
-#define UCHAR_MAX	0xff
+#define CHAR_BIT    8
+#define SCHAR_MIN   0x80
+#define SCHAR_MAX   0x7f
+#define UCHAR_MAX   0xff
 
 /* These could be different on machines where char is unsigned */
 
-#define CHAR_MIN	SCHAR_MIN
-#define CHAR_MAX	SCHAR_MAX
+#define CHAR_MIN    SCHAR_MIN
+#define CHAR_MAX    SCHAR_MAX
 
-#define SHRT_MIN	0x8000
-#define SHRT_MAX	0x7fff
-#define USHRT_MAX	0xffff
+#define SHRT_MIN    0x8000
+#define SHRT_MAX    0x7fff
+#define USHRT_MAX   0xffff
 
 /* For M16C, type int is 16-bits, the same size as type 'short int' */
 
-#define INT_MIN         SHRT_MIN
-#define INT_MAX         SHRT_MAX
-#define UINT_MAX	USHRT_MAX
+#define INT_MIN     SHRT_MIN
+#define INT_MAX     SHRT_MAX
+#define UINT_MAX    USHRT_MAX
 
 /* For M16C, typle 'long int' is 32-bits */
 
-#define LONG_MAX	0x80000000
-#define LONG_MIN	0x7fffffff
-#define ULONG_MAX	0xffffffff
+#define LONG_MAX    0x80000000
+#define LONG_MIN    0x7fffffff
+#define ULONG_MAX   0xffffffff
 
-#define LLONG_MAX	0x8000000000000000
-#define LLONG_MIN	0x7fffffffffffffff
-#define ULLONG_MAX	0xffffffffffffffff
+#define LLONG_MAX   0x8000000000000000
+#define LLONG_MIN   0x7fffffffffffffff
+#define ULLONG_MAX  0xffffffffffffffff
+
+/* A pointer is 2 bytes */
+
+#define PTR_MIN     0x0000
+#define PTR_MAX     0xffff
 
 #endif /* __ARCH_SH_INCLUDE_M16C_LIMITS_H */
diff --git a/nuttx/arch/sh/include/sh1/limits.h b/nuttx/arch/sh/include/sh1/limits.h
index 8ae1eb9c5..82d56a70d 100644
--- a/nuttx/arch/sh/include/sh1/limits.h
+++ b/nuttx/arch/sh/include/sh1/limits.h
@@ -44,34 +44,39 @@
  * Definitions
  ****************************************************************************/
 
-#define CHAR_BIT        8
-#define SCHAR_MIN	0x80
-#define SCHAR_MAX	0x7f
-#define UCHAR_MAX	0xff
+#define CHAR_BIT    8
+#define SCHAR_MIN   0x80
+#define SCHAR_MAX   0x7f
+#define UCHAR_MAX   0xff
 
 /* These could be different on machines where char is unsigned */
 
-#define CHAR_MIN	SCHAR_MIN
-#define CHAR_MAX	SCHAR_MAX
+#define CHAR_MIN    SCHAR_MIN
+#define CHAR_MAX    SCHAR_MAX
 
-#define SHRT_MIN	0x8000
-#define SHRT_MAX	0x7fff
-#define USHRT_MAX	0xffff
+#define SHRT_MIN    0x8000
+#define SHRT_MAX    0x7fff
+#define USHRT_MAX   0xffff
 
 /* On SH-1, type 'int' is 32-bits */
 
-#define INT_MIN         0x80000000
-#define INT_MAX         0x7fffffff
-#define UINT_MAX	0xffffffff
+#define INT_MIN     0x80000000
+#define INT_MAX     0x7fffffff
+#define UINT_MAX    0xffffffff
 
 /* On SH-1, type 'long' is the same size as type 'int', 32-bits */
 
-#define LONG_MAX	INT_MIN
-#define LONG_MIN	INT_MAX
-#define ULONG_MAX	UINT_MAX
+#define LONG_MAX    INT_MIN
+#define LONG_MIN    INT_MAX
+#define ULONG_MAX   UINT_MAX
 
-#define LLONG_MAX	0x8000000000000000
-#define LLONG_MIN	0x7fffffffffffffff
-#define ULLONG_MAX	0xffffffffffffffff
+#define LLONG_MAX   0x8000000000000000
+#define LLONG_MIN   0x7fffffffffffffff
+#define ULLONG_MAX  0xffffffffffffffff
+
+/* A pointer is 4 bytes */
+
+#define PTR_MIN     0x00000000
+#define PTR_MAX     0xffffffff
 
 #endif /* __ARCH_SH_INCLUDE_SH1_LIMITS_H */
diff --git a/nuttx/arch/sim/include/limits.h b/nuttx/arch/sim/include/limits.h
index a692c9c36..aef6efa45 100644
--- a/nuttx/arch/sim/include/limits.h
+++ b/nuttx/arch/sim/include/limits.h
@@ -1,7 +1,7 @@
 /************************************************************
- * limits.h
+ * arch/sim/include/limits.h
  *
- *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2007,2009 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -33,8 +33,8 @@
  *
  ************************************************************/
 
-#ifndef __ARCH_LIMITS_H
-#define __ARCH_LIMITS_H
+#ifndef __ARCH_SIM_INCLUDE_LIMITS_H 
+#define __ARCH_SIM_INCLUDE_LIMITS_H 
 
 /************************************************************
  * Included Files
@@ -44,32 +44,37 @@
  * Definitions
  ************************************************************/
 
-#define CHAR_BIT        8
-#define SCHAR_MIN	0x80
-#define SCHAR_MAX	0x7f
-#define UCHAR_MAX	0xff
+#define CHAR_BIT    8
+#define SCHAR_MIN   0x80
+#define SCHAR_MAX   0x7f
+#define UCHAR_MAX   0xff
 
 /* These could be different on machines where char is unsigned */
 
-#define CHAR_MIN	SCHAR_MIN
-#define CHAR_MAX	SCHAR_MAX
+#define CHAR_MIN    SCHAR_MIN
+#define CHAR_MAX    SCHAR_MAX
 
-#define SHRT_MIN	0x8000
-#define SHRT_MAX	0x7fff
-#define USHRT_MAX	0xffff
+#define SHRT_MIN    0x8000
+#define SHRT_MAX    0x7fff
+#define USHRT_MAX   0xffff
 
-#define INT_MIN         0x80000000
-#define INT_MAX         0x7fffffff
-#define UINT_MAX	0xffffffff
+#define INT_MIN     0x80000000
+#define INT_MAX     0x7fffffff
+#define UINT_MAX    0xffffffff
 
 /* These change on 32-bit and 64-bit platforms */
 
-#define LONG_MAX	0x80000000
-#define LONG_MIN	0x7fffffff
-#define ULONG_MAX	0xffffffff
+#define LONG_MAX    0x80000000
+#define LONG_MIN    0x7fffffff
+#define ULONG_MAX   0xffffffff
 
-#define LLONG_MAX	0x8000000000000000
-#define LLONG_MIN	0x7fffffffffffffff
-#define ULLONG_MAX	0xffffffffffffffff
+#define LLONG_MAX   0x8000000000000000
+#define LLONG_MIN   0x7fffffffffffffff
+#define ULLONG_MAX  0xffffffffffffffff
 
-#endif /* __ARCH_LIMITS_H */
+/* A pointer is 4 bytes */
+
+#define PTR_MIN     0x00000000
+#define PTR_MAX     0xffffffff
+
+#endif /* __ARCH_SIM_INCLUDE_LIMITS_H  */
diff --git a/nuttx/arch/z16/include/limits.h b/nuttx/arch/z16/include/limits.h
index f1e17f073..56ac65afa 100644
--- a/nuttx/arch/z16/include/limits.h
+++ b/nuttx/arch/z16/include/limits.h
@@ -1,5 +1,5 @@
 /****************************************************************************
- * arch/limits.h
+ * arch/z16/include/limits.h
  *
  *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
@@ -33,8 +33,8 @@
  *
  ****************************************************************************/
 
-#ifndef __ARCH_LIMITS_H
-#define __ARCH_LIMITS_H
+#ifndef __ARCH_Z16_INCLUDE_LIMITS_H 
+#define __ARCH_Z16_INCLUDE_LIMITS_H 
 
 /****************************************************************************
  * Included Files
@@ -44,30 +44,35 @@
  * Definitions
  ****************************************************************************/
 
-#define CHAR_BIT       8
-#define SCHAR_MIN	0x80
-#define SCHAR_MAX	0x7f
-#define UCHAR_MAX	0xff
+#define CHAR_BIT    8
+#define SCHAR_MIN   0x80
+#define SCHAR_MAX   0x7f
+#define UCHAR_MAX   0xff
 
 /* These could be different on machines where char is unsigned */
 
-#define CHAR_MIN	SCHAR_MIN
-#define CHAR_MAX	SCHAR_MAX
+#define CHAR_MIN    SCHAR_MIN
+#define CHAR_MAX    SCHAR_MAX
 
-#define SHRT_MIN	0x8000
-#define SHRT_MAX	0x7fff
-#define USHRT_MAX	0xffff
+#define SHRT_MIN    0x8000
+#define SHRT_MAX    0x7fff
+#define USHRT_MAX   0xffff
 
 #define INT_MIN     0x80000000
 #define INT_MAX     0x7fffffff
-#define UINT_MAX	0xffffffff
+#define UINT_MAX    0xffffffff
 
-#define LONG_MAX	0x80000000
-#define LONG_MIN	0x7fffffff
-#define ULONG_MAX	0xffffffff
+#define LONG_MAX    0x80000000
+#define LONG_MIN    0x7fffffff
+#define ULONG_MAX   0xffffffff
 
-#define LLONG_MAX	0x80000000
-#define LLONG_MIN	0x7fffffff
-#define ULLONG_MAX	0xffffffff
+#define LLONG_MAX   0x80000000
+#define LLONG_MIN   0x7fffffff
+#define ULLONG_MAX  0xffffffff
 
-#endif /* __ARCH_LIMITS_H */
+/* A pointer is 4 bytes */
+
+#define PTR_MIN     0x00000000
+#define PTR_MAX     0xffffffff
+
+#endif /* __ARCH_Z16_INCLUDE_LIMITS_H  */
diff --git a/nuttx/arch/z16/include/types.h b/nuttx/arch/z16/include/types.h
index 1de8149b6..34a654184 100644
--- a/nuttx/arch/z16/include/types.h
+++ b/nuttx/arch/z16/include/types.h
@@ -1,5 +1,5 @@
 /****************************************************************************
- * arch/types.h
+ * arch/z16/include/types.h
  *
  *   Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
@@ -37,8 +37,8 @@
  * only indirectly through sys/types.h
  */
 
-#ifndef __ARCH_TYPES_H
-#define __ARCH_TYPES_H
+#ifndef __ARCH_Z16_INCLUDE_TYPE_H 
+#define __ARCH_Z16_INCLUDE_TYPE_H 
 
 /****************************************************************************
  * Included Files
@@ -81,4 +81,4 @@ typedef unsigned short irqstate_t;
  * Global Function Prototypes
  ****************************************************************************/
 
-#endif /* __ARCH_TYPES_H */
+#endif /* __ARCH_Z16_INCLUDE_TYPE_H  */
diff --git a/nuttx/arch/z80/include/ez80/limits.h b/nuttx/arch/z80/include/ez80/limits.h
new file mode 100755
index 000000000..f50feaf08
--- /dev/null
+++ b/nuttx/arch/z80/include/ez80/limits.h
@@ -0,0 +1,86 @@
+/****************************************************************************
+ * arch/z80/include/ez80/limits.h
+ *
+ *   Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __ARCH_Z80_INCLUDE_EZ80_LIMITS_H 
+#define __ARCH_Z80_INCLUDE_EZ80_LIMITS_H 
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+#define CHAR_BIT    8
+#define SCHAR_MIN   0x80
+#define SCHAR_MAX   0x7f
+#define UCHAR_MAX   0xff
+
+/* These could be different on machines where char is unsigned */
+
+#define CHAR_MIN    SCHAR_MIN
+#define CHAR_MAX    SCHAR_MAX
+
+#define SHRT_MIN    0x8000
+#define SHRT_MAX    0x7fff
+#define USHRT_MAX   0xffff
+
+#define INT_MIN     0x8000
+#define INT_MAX     0x7fff
+#define UINT_MAX    0xffff
+
+/* These change on 32-bit and 64-bit platforms */
+
+#define LONG_MAX    0x80000000
+#define LONG_MIN    0x7fffffff
+#define ULONG_MAX   0xffffffff
+
+/* A pointer is 2 or 3 bytes, depending upon if the ez80 is in z80
+ * compatibility mode or not
+ *
+ *   Z80 mode - 16 bits
+ *   ADL mode - 24 bits
+ */
+
+#ifdef CONFIG_EZ80_Z80MODE
+#define PTR_MIN     0x0000
+#define PTR_MAX     0xffff
+#else
+#define PTR_MIN     0x000000
+#define PTR_MAX     0xffffff
+#endif
+
+#endif /* __ARCH_Z80_INCLUDE_EZ80_LIMITS_H */
diff --git a/nuttx/arch/z80/include/limits.h b/nuttx/arch/z80/include/limits.h
index 31a94a547..27707012d 100644
--- a/nuttx/arch/z80/include/limits.h
+++ b/nuttx/arch/z80/include/limits.h
@@ -1,7 +1,7 @@
 /****************************************************************************
- * arch/limits.h
+ * arch/z80/include/limits.h
  *
- *   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -40,32 +40,10 @@
  * Included Files
  ****************************************************************************/
 
+#include <arch/chip/limits.h>
+
 /****************************************************************************
  * Definitions
  ****************************************************************************/
 
-#define CHAR_BIT        8
-#define SCHAR_MIN	0x80
-#define SCHAR_MAX	0x7f
-#define UCHAR_MAX	0xff
-
-/* These could be different on machines where char is unsigned */
-
-#define CHAR_MIN	SCHAR_MIN
-#define CHAR_MAX	SCHAR_MAX
-
-#define SHRT_MIN	0x8000
-#define SHRT_MAX	0x7fff
-#define USHRT_MAX	0xffff
-
-#define INT_MIN         0x8000
-#define INT_MAX         0x7fff
-#define UINT_MAX	0xffff
-
-/* These change on 32-bit and 64-bit platforms */
-
-#define LONG_MAX	0x80000000
-#define LONG_MIN	0x7fffffff
-#define ULONG_MAX	0xffffffff
-
 #endif /* __ARCH_LIMITS_H */
diff --git a/nuttx/arch/z80/include/types.h b/nuttx/arch/z80/include/types.h
index 5e1a3c42d..67f44ddd4 100644
--- a/nuttx/arch/z80/include/types.h
+++ b/nuttx/arch/z80/include/types.h
@@ -1,7 +1,7 @@
 /****************************************************************************
- * arch/types.h
+ * arch/z80/include/types.h
  *
- *   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/nuttx/arch/z80/include/z8/limits.h b/nuttx/arch/z80/include/z8/limits.h
new file mode 100755
index 000000000..c5d7498a0
--- /dev/null
+++ b/nuttx/arch/z80/include/z8/limits.h
@@ -0,0 +1,76 @@
+/****************************************************************************
+ * arch/z80/include/z8/limits.h
+ *
+ *   Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __ARCH_Z80_INCLUDE_Z8_LIMITS_H 
+#define __ARCH_Z80_INCLUDE_Z8_LIMITS_H 
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+#define CHAR_BIT    8
+#define SCHAR_MIN   0x80
+#define SCHAR_MAX   0x7f
+#define UCHAR_MAX   0xff
+
+/* These could be different on machines where char is unsigned */
+
+#define CHAR_MIN    SCHAR_MIN
+#define CHAR_MAX    SCHAR_MAX
+
+#define SHRT_MIN    0x8000
+#define SHRT_MAX    0x7fff
+#define USHRT_MAX   0xffff
+
+#define INT_MIN     0x8000
+#define INT_MAX     0x7fff
+#define UINT_MAX    0xffff
+
+/* These change on 32-bit and 64-bit platforms */
+
+#define LONG_MAX    0x80000000
+#define LONG_MIN    0x7fffffff
+#define ULONG_MAX   0xffffffff
+
+/* A pointer is 2 bytes */
+
+#define PTR_MIN     0x0000
+#define PTR_MAX     0xffff
+
+#endif /* __ARCH_Z80_INCLUDE_Z8_LIMITS_H  */
diff --git a/nuttx/arch/z80/include/z80/limits.h b/nuttx/arch/z80/include/z80/limits.h
new file mode 100755
index 000000000..95ea0ab13
--- /dev/null
+++ b/nuttx/arch/z80/include/z80/limits.h
@@ -0,0 +1,76 @@
+/****************************************************************************
+ * arch/z80/include/z80/limits.h
+ *
+ *   Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __ARCH_Z80_INCLUDE_Z80_LIMITS_H 
+#define __ARCH_Z80_INCLUDE_Z80_LIMITS_H 
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+#define CHAR_BIT    8
+#define SCHAR_MIN   0x80
+#define SCHAR_MAX   0x7f
+#define UCHAR_MAX   0xff
+
+/* These could be different on machines where char is unsigned */
+
+#define CHAR_MIN    SCHAR_MIN
+#define CHAR_MAX    SCHAR_MAX
+
+#define SHRT_MIN    0x8000
+#define SHRT_MAX    0x7fff
+#define USHRT_MAX   0xffff
+
+#define INT_MIN     0x8000
+#define INT_MAX     0x7fff
+#define UINT_MAX    0xffff
+
+/* These change on 32-bit and 64-bit platforms */
+
+#define LONG_MAX    0x80000000
+#define LONG_MIN    0x7fffffff
+#define ULONG_MAX   0xffffffff
+
+/* A pointer is 2 bytes */
+
+#define PTR_MIN     0x0000
+#define PTR_MAX     0xffff
+
+#endif /* __ARCH_Z80_INCLUDE_Z80_LIMITS_H  */